U.S. warplanes and attack helicopters are hitting Iranian targets in an effort to reopen the Strait of Hormuz, officials said. The price of oil remained high as new strikes hit Gulf energy facilities. Visible traffic through the Strait of Hormuz has slowed from more than 130 vessels a day to about an average three or four daily. More than 20 commercial vessels have been struck in and around the waterway. Roughly 2,000 ships and 20,000 seafarers ar... [24880 chars]